NYC Columbus Day parade goers get saucy over new claim that explorer was Jewish, not Italian: 'We don't care'DNA evidence suggests Columbus may not be Italian, but Italian Americans affirm their cultural ties regardless.
The origin of cockroaches: From the fields of India to your kitchenMost cockroaches don't interact with humans; German cockroach is an urban pest. DNA study links its origin to India 2,100 years ago.